[Purpose] Increased plantar pressure during walking is a risk factor for foot ulcers
because of reduced range of motion at the ankle and first metatarsophalangeal joints.
However, the range of motion in patients undergoing hemodialysis has not yet been
determined. A cross-sectional study was performed to investigate the factors affecting the
range of motion of the ankle and first metatarsophalangeal joints in patients undergoing
hemodialysis who walk daily. [Subjects and Methods] Seventy feet of 35 patients receiving
hemodialysis therapy were examined. Measurements included the passive range of motion of
plantar flexion and dorsiflexion of the ankle joint, and flexion and extension of the
first metatarsophalangeal joint. [Results] Hemodialysis duration was not associated with
ankle and first metatarsophalangeal joint range of motion in patients undergoing
hemodialysis. Diabetes duration was significantly associated with limited ankle joint
mobility. Finally, blood hemoglobin levels, body mass index, and age were associated with
first metatarsophalangeal joint range of motion. [Conclusion] The present study identified
age, diabetes, and decreased physical activity, but not hemodialysis duration, to be risk
factors for limited joint mobility of the ankle and first metatarsophalangeal joints in
patients undergoing hemodialysis.